Arc-lamp and reflector.



M.J. WOHLN ARC LA P AND REFLECTOR. APPLICATION FILED APR.IB.19I6.

rammbuul 31, 1917.

2 SHEETSSHEET n uenfoi :31 QCozueu M. l. WOHL.

ARC LmPArw nirucron. APPLICATION FILED API. HI. I916.

Patented J 1113/ 31, 1917.

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MAURICE J. WOHL, OF BROOKLYN.

PANY, OF BROOKLYN, NEW YORK, 'WOHL AND MAX MAYER.

NEW YORK, ASSIGNOB 'IO IVll. J. WOHD AND com. A COPARTNEBSHIP COMPOSED OF MAURICE J.

ABC-LAMP AND REFLECTOR.

Application filed April 18, 1916.

I '0 all whom it may concern:

Be; it known that Mxumcr: J. 70111., a citizen of the United States, and resident of Brooklyn, city of New York, county of Kings, and State of New York, has invented certain new and useful Improvements in Arc-Lamps and Reflectors, of which the following is a' specification. I

This invention relates to electric arc lamps and reflectors comprising carbons carried within pivoted reflectors and independent of each other and adjusted at a point beyond the reflector regardless of the angle at which the reflector and the carbons are set, the object of the invention being to keep the arc chamber at a distance from the operating mechanism and prevent injury to the latter by the excessive heat from the are and to be able to throw the light down or upward without moving the whole lamp and its-operating mechanism, to trim or insert iii) the carbons in their holders without inter fering with the mechanism housing, and the substituting of a dummy instead of the actual carbon for the adjustmentof the latter.

These and other objects and details of the invention are more following specification, set forth in the claims and illustrated in the accompanying drawings, wherein: I v

Figure 1 is a vertical sectional View throughthe mechanism box and one of the reflectors.

1 Fig. 2 is a horizontal sectional view the erating mechanlsm and which is divided by means of the partition 6 into compartments 7 and 8, the latter containing the solenoids 9 that operate cores 10 having interposed in their length .the horizontal springs 11 in which is located the crossbar 12. At each end of this cross bar is secured the rod 13 made up "of spring members 14 and extensions 15 whose lower ends are attached to the plntch members 16 of theusual form and supported "on the partition (5 to adjust the rods 17 playing through the openings 18 .in

said partitions and of the same diameter as the carbons.

Specification of Letters Patent.

fully described in the shown in the drawings may be Patented July 31, 1917.

Serial No. 91,868.

The rods 17 are substantially dummy carbons and are carried and adjusted in the clutches the same as a carbon pencil. Their upper ends are fitted in a socket 19 having sleeves 20 which slide on guide rods 21 extending from the partition (3 to the top of the box, there being two sets of these rods for each solenoid.

At the front of the box 5 and at each end is the bracket 22 perforated to receive a rod which is the pivot of. the reflector 2 and on which it may be turned to the desired angle to project the light of the arc lamp.

The reflector may be of any type with the rod 23 also passes. The rods 28 extend into recesses'27 at the top of the reflectors and the upper carbons 29 and heir holders 30 are adapted to more up and down the rod as the'carbons are adjusted. The lower or stationary carbons 31 are carried by the holders 32 secured to the lower end of the bars 28 and when originally located is of sufficient length to be about opposite the focal, center of the reflector. The carbons and reflector may be said to constitute a light projector which is pivoted on a horizontal axis.

The holders are so perforated as to fit about the rods 28 and be capable of moving along the'same. while the outer ends have sockets 33 for the upper carbons 29. The perforated ends of the holders have at one side the eyes 34 in which play the curved rods 35 that are continuations of rods 36 extending from the lower ends of the dummies 17 and moving with the same so as to trans lnit the adjustment of the rods 17 to the carbons 29 and regulate them according to the requirements of the arcs by means of: the electric circuits operating the lamps.

sired angle without disturbing the open.

The rods 36 play througl'i slots in the lower side of the reflector.

v ranged in pairs,

working of those parts whichmay be influenced by changing the lines of gravity.

The rods 35 being arcs of a circle of which pivot rod 23 is the center, they play through the eyes 34 when the reflector is shifted without interfering with the adjustment of the carbons and always hold the upper ones at the height determined by the clutches 16.

It willbe observed by referring to Fig. 2 that the lamps are four in number and areach pair being controlled by a single solenoid. This arrangement insures a constant light in cases where-such a light is absolutely needed and secures the separate and independent feed of each upper carbon, also the trimming of the car ons without access to the mechanism box, The substitution of a dummy for the real carbon makes it possible to construct the said dummies of a material easy to feed and adapted to securea more constant arc.

The whole device may be transported or located in any convenient place for use and its simplicity of constructionvwill preclude any danger of injury or disorder.

It is obvious that the parts may be otherwise arranged or modified Without departing from the essential features above described or from the scope of the appended claims.

The circuit for, the lamp and its operating mechanism is the usual system employed in electric lamps and the wiring for the same,

and the core 10 has at its lower end the plunger 37 to act in the dash pot 38 to prevent the sudden operation of the parts and prevent undue noise.

What I claim as new is:

1. Inan arc lamp, a frame; alight pro.-

' jector comprising a pair of carbons and a reflector, said pro ector being pivotally mounted on said frame, carbon feed means.

including a'solenoid carried by said frame independently of saidproje'ctoi", and a control connection between the core of. said solenoid and one-ofsaid carbons adapted to erate in different-angular positionsoftiie light projector relatively to the solenoid.

'2. In an arc lamp, a light projector c'omprising a reflector a-ndfa pairofcarbons mounted on said reflector, a box containing said projector being pivotally mounted on said box on a horizontal axis, and 'a control connection'between said mechanism and one of'said carbons adapted to operate to feed said carbon in different angular positions of the light projector relatively to the said box.

3'. ill an arc lamp, a light project'or comthe feed echanism, otally mounted on said box on a'hori'zofitpl axis, and .a control connection betweensmd said projector I mechanism and one of said carbons adapted lamp, a light projector comrising a pair of carbons and a reflector, a} ox on ,which said projector is pie'otally "f" mounted on a horizontal axis, an insulated extending vertically in j bar carried by and ro ector, a ar carbon carbon holder slidable on said holder.

Y feed mechanism Within .box, and a feed control connection between said carbon feed mechanism and saidcarbon- 5. '-In an arc lamp,a light projector comprising a pair of carbons and a reflectona box on which said projector is pivotally. mounted on a horizontal axis, an insulatedbar extending vertically in the carbon holder slidable 9n said projector, aar, carbon feed mechanism within isaid box, and a conf j trol connection between said carbon feed mechanism and said carbon holder, said con nection including a rod curved concentric tov the pivotal axis of the projector and s'lidably engaging the carbon holder. Y

6...In an arc lamp, a l ht projector comprising a pair ofcarbons and a refiectona 7 box on which said light projector is pivoted on a horizontal axis, a solenoid withinthe box, a dummy carbon .operated by the sole noid, a clutch for adjusting the dummy car bon operated by the correct the solenoid, an nsulated bar extending vertically in said ')10]6Ci301, a carbon .holderslidable on said ar, and a rod secured at one end to the dummy carbon and having its opposite end curved concentric to the pivotal axis of the light projector and in slidable engagement with said carbon holder.

. 7. In anarc lamp, a light iprojector comprising a pair-of carbons an a'reflector, a

' ox behind the said projector and on which the latter s pivoted on a horizontal axis, a

solenoid and core, a resilient-rod, a clutch, a

dummy carbon carried by the said core and I I adapted to be engaged by'the said clutch, aelectricaily operated carbon feed mechanism,

holder for one of said carbons, an insulated ed, an eye on saidholder and a ro secured at'oneend to the said dummy carbon and bar on which said holder is slidablgmounthaving its opposite end curved-concentric to i the pivotal axis of the lightipr ojector and passing freely through the-said eye. Signed at city, county, and State of New' York, this 27th day of-March, 1916. i MAURICE J. WOHL. 

